22021120000121 has 4 divisors (see below), whose sum is σ = 24023040000144. Its totient is φ = 20019200000100.

The previous prime is 22021120000097. The next prime is 22021120000129. The reversal of 22021120000121 is 12100002112022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22021120000121 is a prime.

It is a super-2 number, since 2×22021120000121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22021120000096 and 22021120000105.

It is not an unprimeable number, because it can be changed into a prime (22021120000129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1000959999995 + ... + 1000960000016.

It is an arithmetic number, because the mean of its divisors is an integer number (6005760000036).

Almost surely, 2^{22021120000121} is an apocalyptic number.

It is an amenable number.

22021120000121 is a deficient number, since it is larger than the sum of its proper divisors (2001920000023).

22021120000121 is a wasteful number, since it uses less digits than its factorization.

22021120000121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001920000022.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22021120000121 its reverse (12100002112022), we get a palindrome (34121122112143).

The spelling of 22021120000121 in words is "twenty-two trillion, twenty-one billion, one hundred twenty million, one hundred twenty-one", and thus it is an aban number.